Decoder and apparatuses including the same
AssigneeSeagate Technology International
InventorJoo Hyun LEE
Life of this patent
Estimating the term…
Abstract
A decoder includes a first decoder configured to iteratively decode input data, accumulate iteratively decoded data in bit units, compare an accumulated value obtained for each bit of the iteratively decoded data with a plurality of reference values, and output decision data and indicator data according to a comparison result. The decoder includes a second decoder configured to perform error correction on a symbol including the decision data according to the indicator data.
Claims18
A decoder comprising:
- a first decoder configured to iteratively decode input data, accumulate iteratively decoded data in bit units, compare an accumulated value obtained for each bit of the iteratively decoded data with a plurality of reference values, and output decision data and indicator data according to a comparison result;
- and
- a second decoder configured to perform error correction on a symbol comprising the decision data according to the indicator data.
A data processing system comprising:
- a decoder comprising:
- a first decoder configured to iteratively decode input data, accumulate iteratively decoded data in bit units, compare an accumulated value obtained for each bit of the iteratively decoded data with a plurality of reference values, and output decision data and indicator data according to a comparison result;
- and
- a second decoder configured to perform error correction on a symbol comprising the decision data according to the indicator data;
- and
- a processor configured to process data on which error correction has been performed by the decoder.
A controller to control an operation of a hard disk drive, the controller comprising:
- a first decoder configured to iteratively decode input data, accumulate iteratively decoded data in bit units, compare an accumulated value obtained for each bit of the iteratively decoded data with a plurality of reference values, and output decision data and indicator data according to a comparison result;
- and
- a second decoder configured to perform error correction on a symbol comprising the decision data according to the indicator data.
A hard disk drive comprising:
- a disk;
- a head configured to read an analog signal from the disk;
- a pre-amplifier configured to amplify the analog signal read by the head;
- and
- a controller comprising a first decoder configured to iteratively decode input data corresponding to an analog signal output from the pre-amplifier, accumulate iteratively decoded data in bit units, compare an accumulated value obtained for each bit of the iteratively decoded data with a plurality of reference values, and output decision data and indicator data according to a comparison result;
- and a second decoder configured to perform error correction on a symbol comprising the decision data according to the indicator data.
Dependencies are inferred from the claim text.